SmartNavi offers OpenSource, step-based and GPS independent navigation for Android. smartnavi-app.com

Playing with rtklib on android

[Esri GIS 2nd Prize] We developed this indoor and outdoor seamless positioning and navigation system under the Android system by using the built-in multi-sensors of mobile phones.

Java·Applied·Geodesy·3D - Least-Squares Adjustment Software for Geodetic Sciences

This is an indoor positioning algorithm that integrates multiple sensors. After the paper is published and the patent is granted, the algorithm will be open source.

一个用于获取、分析和展示手机端导航数据的app

Complete Egyptian GNSS positioning suite - Android logger app, MATLAB analysis tools, and satellite positioning algorithms

The #1 open-source Android GNSS/GPS test program